yANTIQUES ROADSHOW is in the Red Stick city, as host Mark L. Walberg and appraiser Christopher Mitchell head to Port Hudson to discuss a rare Civil War hand grenade. Highlights include an early 19th-century Louisiana work table that was stored in a barn for several decades; a collection of insightful Civil War Confederate letters that were found in the wall of a torn down Mississippi house; and a Porfirio Salinas oil, ca. 1935, in its original frame, that was bought by the owner's grandmother for $100 in 1935 and is now valued at $75,000.